Loans Receivable, Net - Troubled Debt Restructurings (Detail) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2017 USD ($) SecurityLoan	Jun. 30, 2016 USD ($) SecurityLoan	Jun. 30, 2017 USD ($) SecurityLoan	Jun. 30, 2016 USD ($) SecurityLoan
Residential Real Estate
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	2	1	4	2
Pre-modification Recorded Investment	$ 658	$ 29	$ 1,026	$ 219
Post-modification Recorded Investment	$ 658	$ 29	$ 999	$ 218
Commercial Real Estate - Owner Occupied
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	1		3
Pre-modification Recorded Investment	$ 966		$ 2,609
Post-modification Recorded Investment	$ 966		$ 2,609
Commercial Real Estate - Investor
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	2		3	1
Pre-modification Recorded Investment	$ 5,036		$ 5,662	$ 256
Post-modification Recorded Investment	$ 5,011		$ 5,784	$ 270
Subsequently Defaulted
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	0	0	0	0
Recorded Investment	$ 0	$ 0	$ 0	$ 0
Consumer
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	1	2	1	2
Pre-modification Recorded Investment	$ 665	$ 63	$ 665	$ 63
Post-modification Recorded Investment	$ 665	$ 63	$ 665	$ 63

Financing Receivable Modifications Post Modification Recorded Investment During Period

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Financing Receivable Modifications Pre Modification Recorded Investment During Period

+ References

No definition available.

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- Definition

Trouble Debt Restructuring Modifications Recorded Investment

+ References

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- Definition

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+ References

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Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524

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